Spring-cushion structure



Jan. 10, 1928.

P. KRAKAUER SPRING CUSHION STRUCTURE Filed March 7. 1924 \22 auoentoz Phillip Krakauer Patented Jan. 10, 1928.

UNITED, STATES PATENT OFFICE.

PHILLIP KRAKAUER, OF BROOKLYN, NEW YORK, ASSIGNGR TO KAY MANUIIACT'UR- ma ea, or nnooxnnn, NEW roan,

A CORPORATION OF NEW YORK.

SPRING-CUSHION STRUCTURE.

Application filed March 7, 1924. Serial No. 697,444.

This invention relates to spring cushions and particularly to the structure of that type of cushions in which each spring is held in an individual pocket. The various objects of my invention can best be understood from the description which follows, and from the accompanying drawings, in which,

Fig. 1 is a combined top plan view and a partial horizontal section of a cushion structure embodying my invention, and

Fig. 2 is a vertical section of the same taken on the line 2--2 of Fig. 1.

Fig. 3 is a perspective view of one of the continuous partitions as it appears vvhen seamed into position, and Fig. t is a iront view of one of said partitions before it has been bent and seamed into position.

A cushion structure economical in the use of materials and labor, and adapted for the rapid insertion of the springs thereinto has long been sought and has heretofore been onl approximated.

pring cushions have heretofore been made largely in units, each unit comprising a complete row of sprin'gs entirely encased and ready for insertion into a casing, each spring being contained in an individual, substantially cylindrical pocket. It has been found that the structure just described is wasteful of material due to the duplication of material for covering the ends of the ockets. Other cushions have, therefore,

een made With substantially square pockets for individual springs by seaming partitions to the top and bottom of a casing and thereby utilizing the casing for one or both of the ends of the pockets.

My improved structure contemplates the use of a partly open semi-cylindrical and semi-square pocket, whereby I am enabled to save considerable material and am further able to use a minimum of labor in the assembly thereof.

outer casing as 1Q preferably all of one piece of material, has secured thereto suitable continuous strips as 11-substantially of the same Width as the height of the completed pockets, together With the seamed edges 21 and 22 thereof, as will be more fully described hereinafter. Said casing is preferably folded substantially midway, after the attachment to the top 14 and to the bottom thereof, of one of the edges as 2L and 22 respectively of each strip 11, so

that the peripheral edges of said casing may later be brought together and seamed as at 13 to form a closed structure, complete with springs as 12 suitably held therein. 'lo stretch the casing 10 into its preferably rectangular prismatic form, wherein a top 14, a bottom15, sides 16 and 17, and edges 18, are formed, reliance is preferably had upon the extension of the springs 12 into contact with said top 14: and bottom 15 after said springs have been inserted into the unseamed casing, as will be more fully described hereinafter.

I prefer to arrange each partition form ing strip 11 so that its general direction pro ceeding from one end to the other is sub stantially parallel to one of the sides of the cushion structure. It-will be noted that said partition strip 11 extends from one of the sides of the cushion as 16 to the opposite 75 side as 17, and i made of a single continuous strip ofmateria so shaped as to form three of the walls, 19, 20 and 31 of the interior spring holding pockets 32. "10 form said Walls, I prefer to bend said strip into sinuous form in such a manner that each of the resulting Walls is substantially perpendicular to the adjacent walls of the strip, or in other Words, the alternate walls are substan tially parallel to each other and to the same side of the cushion structure.

Said Walls, 19, 20 and. ill cooperate with a corresponding Wall of the adjacent partition to form the complete pocket. Before assembling the pocket structure, 1 prefer to mark on the inner surface of the top 14 and of the bottom 15 of the casing 10, lines substantially in the form of a series of squares indicating in which positions and at which points the partitions 11 are to be seamed. 95

Each of said partitions 11 are slitted in- Wardly from the edges 21 and a suiiicient distance to allow said strip to be bent readily into the perpendicular pocket Walls 19, 20 and- 31, as by means of the slits 40, each 100 substantially perpendicular to the edges of said partition. by reason of said slits, I am enabled to round the corners of the pocket at the juncture of the walls 19, 20 and 31 to follow substantially the cylindrical Shops 105 of the spring 12, as will be seen from Fig. This results in a considerable saving of material since it is Well known that the surface of a'cylinder is of considerably less area than that of a square prism, the sides of no inate the creases and folds which would otherwise result When the partition ll. is bent at right angles to form said walls, there" by making the seaming of the edges .21 and "22 to the casing as by means oi: the seams 23 and 2st, a rapid and simple operation, quiring little time and eliort, Similarly, when the concave surface as is between. the Walls and 31 is formed, the end of one of the edges of one wall naturally adjusts itself into a position in which it overlaps the edge of the adjacent wall with the same advantages respecting ease of scaming, elimination of creases and saving of material. A further advantage arising from the use of the slits i0 is that said slits act as guides to the operator when seaming the partitions in place, so that he may stop sewing when the edge of the slit is reached, thereby preventing accidents and Waste of time and material in running the scam too far in one direction.

it will be seen that by 11 to form three of the Walls of each of the pockets 3?, a series of corresponding Walls 33 of alternate pockets of a row and adjacent to the Walls 31 and 19, are formed in alignment with each other, a second series of walls 20 parallel and in spaced relation to said Walls 33 are similarly formed, a third series cl Walls 19 connect one end of each of the Walls 33 to an end of the wall 20, and a fourth series of walls 31 connect the other end of each of the Walls 20 to the other end of each of the Walls 33 For the outer rows of pockets 3%, only three Walls are needed, the remaining Wall shaping the strip of the pocket being preferably formed by the sides 17 or 18 of the casing 10. For econonly of material, the pockets 35 in the row immediately adjacent to the edge 18 oi the casing may be formed of a ll-shaped strip as 86, though, if desired, a long, continuousstrip 11 may obviously also be used in said row.

It will be noted that the strips ll are on tirely independent of, and are unconnected to each other in any Way, whereby a series of openings as 25 of substantial is formed between adjacent strips, through which openings at suitable spring carrying tool, or the hand carrying a compressed spring may be passed through the cushion structure to reach any one or all of tile pockets in a row. It will be obvious from said spaces that consiijlcrable material is eliminated, without loss of the spring enclosing ellcct oi? the pocket, since said pocket being stitched at the top and bottom, and

said spaces being made preferably substantially less than the diameter of the spring 12, prevent undue displacement thereof.

t will be understood that for the purpose of inserting the springs 12 into their respective pockets, one of the sides as 17 is preferably lelt unscaiued until after the insertion of said springs.

, To insert the springs 12 into the pockets therefor after the casing 10, and the partitions 11 have been substantially completely seamed together, the hand containing a compressed spring may be inserted between the partitions, through the spaces l. pr fer, however, to till the alternate pockets oi each of two adjacent rows in staggored relation by means of a suitable tool adapted for that purpose. In other Words, I prefer to fill alternate pockets in one row at the sametiine that alternate pockets in the adjacent row, diagonally of the pockets in the first mentioned row are being filled, so that certain pockets to the left of a given row of spaces 25 are being filled simultaneously with the filling of certain other pockets to the right of said row of spaces.

After insertion of the springs into the pockets has been completed, the unseaineth cdges ot the casing 10 are brought together, and readily seamed by the stitching 13, completing the structure, and maintaining the parts in their permanent operative relationv Only one thickness of material is provided at all parts of each pocket of my improved cushion for purposes of economy, while aligned spaces 25 ans provided, for allowing the rapid insertion into the pockets of an entire series of springs at a time, if desired. It will be seen that my improved arrange mentof the pocket forming partitions 11 provides an individual pocket of peculiar shape for each spring, is economical of material, due particularly to the slits 40, and may be rapidly seamed to the casing with little expenditure of labor.

I do not wish to limit myself to the specific structure shown, as various changes may be made therefrom, as in the manner of folding the edges 21 and 22, in the length and po ition of the slits 40. and in the insertion of the springs into their pockets, and in the size of the spaces 25, Without departing from. the spirit of my invention.

1 claim:

1. In a spring cushion structure, a series of continuous pocket forming partitions 8X tending from one of the sides to the opposite side of the said structure, and walls, bent from said partitions for forming three of the sides of the interior pockets of said structure, the fourth wall of each of said interior pockets being formed by one of the walls of the similarly bent adjacent partition said fourth Well being spaced from the first mentioned walls for providing spaces at. two of the adjacent corners of each of said pockets.

ill)

some t 2. In a spring cushion structure, means forming a series of pockets substantially squerein cross section with glartly cylindrical interiorly concave rounded portions at the points corresponding to two oif the adjacent corners of the square and oyenings at the points corresponding to; the remaining corners of the square, comprising a series of sinuous partitions arranged across said. structure and between the sides thereof, a pair of substantially parallel Walls substan tially parallel in said sides and a wall substantially perpendicular to and joining said parallel walls bent from said partitions, one

of said perpendicular walls at the adjacent partition serving as the fourth wall of each of said pockets, and a casing seamed to the upper and lower edges of said artitions and forming the top and bottom 0 said pockets, and a spring in each of said pockets,

3. A spring cushion construction of the class described, comprising a top, a bottom spaced therefrom and a plurality-of partition walls ranging across the top and bottom and connected to the latter on serpentine lines, whereby to provide a plurality of rows of pockets, the alternate ockets of each row havingtlieir open sides directed reversel to the open sides of the intermediate poo ets and arranged with respect to the contiguous pockets so that the closed sides of tile pockets of one row are disposed opposite to the open sides of the pockets of the neighboring rowel 4'. A spring cushion construction of the class described, comprising a top, a bottom spaced therefrom, and o plurality of nert-i tlon walls rangin across the top and bottom,

each of said Wei s providing a plurality oi pockets open at one side onlggr the alternete ookets of each row having their open sides .ireoted reversely to the open sides of the I intermediate pockets, one w the closed sides of each pocket of a row being disposed opposite to and closing the open side of a pocket of a neighboring row.

5. A spring cushion construction of the class described, comprising a top, a bottom spaced therefrom; and a lurality of partition Walls rangiilg'across tbs top and bottom,

each of said walls being continuous and pro- 

